General Catalyst

AI safety company and maker of Claude AI models

Online payment processing and financial infrastructure platform

Anduril Industries is a defense technology company building autonomous systems, AI software, and sensor hardware for military and national security applications. Founded by Oculus VR creator Palmer Luckey and former Palantir employees, the company builds products including autonomous drones, surveillance towers, underwater vehicles, and the Lattice AI platform that integrates sensors and effectors into a unified command-and-control system.

Online marketplace for short-term lodging and experiences

French artificial intelligence company that develops open-weight and proprietary large language models, offering frontier AI through its platform La Plateforme and chatbot Le Chat.

Online grocery delivery and pick-up platform connecting customers with personal shoppers. One of the largest grocery technology companies in the US.

Camera and social media company behind Snapchat, the visual messaging app with disappearing messages, Stories, augmented reality Lenses, and Snap Map, reaching over 800 million monthly active users.

Zepto is an Indian quick-commerce platform that delivers groceries, household essentials, and electronics to customers in approximately 10 minutes through a network of hyper-local dark stores. Founded by two Stanford dropouts, the company operates over 900 dark stores across major Indian cities.

Corporate card and spend management platform that helps businesses save money on expenses. Combines corporate cards with software for expense management, bill payments, accounting automation, and procurement. Known for its rapid growth, reaching $100M ARR in under 3 years.

Devoted Health is a technology-driven health insurance company focused on Medicare Advantage plans for seniors. The company combines a full-stack health plan with proprietary technology to deliver personalized care, guide navigation, and clinical programs designed to dramatically improve the health and well-being of older Americans.

Skild AI develops generalist foundation models for robotics and physical-world AI intelligence, enabling robots to perform a wide range of tasks through embodied AI.

The first federally regulated prediction market exchange in the United States, approved by the CFTC as a Designated Contract Market in 2020. Enables users to trade event contracts on real-world outcomes spanning economics, politics, weather, sports, and culture. Emerged from Y Combinator's W19 batch.

Applied Intuition is a vehicle software supplier that builds simulation, validation, and development tools for autonomous driving and ADAS. The company serves 18 of the top 20 global automakers and has expanded from pure simulation into a full autonomy stack, incorporating generative AI capabilities for automotive, trucking, mining, agriculture, and defense industries.

Online graphic design platform that makes design accessible to everyone, offering an intuitive drag-and-drop editor with AI-powered Magic Studio tools used over 5 billion times.

Communication platform for communities and friends, offering voice, video, and text chat used by hundreds of millions of people worldwide.

Global HR and payroll platform that enables companies to hire, pay, and manage workers and contractors in over 150 countries, handling compliance, taxes, and benefits.

Pioneer of the Connected Operations Cloud, combining IoT hardware (sensors, telematics devices, AI-powered dash cams) with cloud-based software to help organizations improve safety, efficiency, and sustainability. Serves tens of thousands of customers across transportation, logistics, construction, and manufacturing. IPO'd on the NYSE in December 2021.

Frontend cloud platform and creator of Next.js

Collaborative interface design tool that runs in the browser, enabling real-time multiplayer editing for design teams.

Automated data movement platform that reliably moves data from 700+ sources including SaaS applications, databases, and files to data warehouses, data lakes, and other destinations.

Cloud-based payroll, benefits, and HR platform for small and medium businesses, serving over 400,000 companies. Originally launched as ZenPayroll in 2012 before rebranding to Gusto in 2015.

Zenefits was a cloud-based human resources platform that offered free HR software to small and mid-sized businesses, handling payroll, benefits administration, and compliance. The company rose rapidly through Y Combinator to a $4.5 billion valuation but collapsed after regulatory scandals revealed unlicensed insurance brokerage. Acquired by TriNet in 2022.

Illumio is a cybersecurity company that provides zero trust segmentation solutions to prevent breaches from spreading across data centers, cloud environments, and endpoints. The platform uses real-time visibility and automated policy enforcement to contain attacks, serving more than 20% of the Fortune 100.

Black Forest Labs is a frontier AI lab building state-of-the-art generative AI models for images and video. Founded by the creators of Stable Diffusion, the company develops the FLUX family of open-source text-to-image models, which have achieved over 400 million downloads and are used by Adobe, Canva, Meta, and Microsoft.

Alation is the pioneer of the data catalog category, providing an agentic data intelligence platform that helps enterprises discover, govern, and trust their data assets. The platform uses AI-powered search, automated documentation, and lineage tracking. Over 40% of the Fortune 100 are customers, and the company surpassed $100M in annual recurring revenue in 2022.

Sleep technology company that develops AI-powered smart mattress covers with embedded sensors for temperature regulation, sleep tracking, and personalized health insights. The Pod mattress cover uses machine learning to optimize sleep quality by adjusting bed temperature throughout the night.

Customer data infrastructure platform that collects, cleans, and routes customer data to hundreds of analytics, marketing, and data warehouse tools through a single API. Founded by four MIT students as part of Y Combinator S11.

Video messaging platform for workplace communication that lets users record their screen, camera, or both to create quick, shareable videos. Grew to 25 million users before being acquired by Atlassian in October 2023 for $975 million.

Nominal builds the unified, real-time test stack for physical systems. The platform helps engineering teams developing complex hardware (aircraft, satellites, autonomous vehicles, fusion energy systems, weapons programs) to test, validate, and monitor their systems continuously.

Convex is an open-source reactive backend-as-a-service platform that provides a real-time database, serverless functions, and client SDKs for building live-updating web and mobile apps. The platform integrates a TypeScript-based document store and function runtime for queries and mutations. Convex went open source in March 2024.

AI-native B2B customer support platform providing omnichannel support across Slack Connect, Microsoft Teams, email, in-app chat, and ticket forms. Features AI-powered ticketing, knowledge base, AI agents, and workflow automation. Modern alternative to Zendesk and Intercom for B2B companies.

Cloud-based medical platform offering all-in-one EHR, practice management, medical billing, and telehealth solutions. Built as the first EHR designed for iPad. Served 4,600+ independent practices and 13,000+ providers across medical specialties, managing 17.8M+ patients and $11B+ in medical billings. Apple Mobility Partner. Acquired by EverCommerce for $180M in November 2021.

Builds an AI-powered platform for enterprise finance teams that automates the month-end close process. Uses agentic AI to handle reconciliations, journal entries, flux analysis, and variance reporting. Integrates with ERP systems like NetSuite and serves over 30 enterprise customers globally.

B2B cross-border payments infrastructure platform for Indian businesses. Provides API-driven infrastructure enabling SaaS companies, global capability centers, IT/ITeS exporters, and goods exporters to collect overseas payments, manage foreign exchange, and settle funds locally. Supports payments from 100+ countries across 25+ currencies, serving nearly 15,000 businesses with $1B in annualized cross-border payments.